375 search results - page 27 / 75 » Accessible Capacity of Secondary Users |
144
Voted
JSAC
2008
15 years 14 days ago
2008
We propose the cross-layer based opportunistic multi-channel medium access control (MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the packet sch...
139
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INFOCOM
2011
IEEE
14 years 3 months ago
2011
IEEE
—Cognitive radios (CRs) can mitigate the impending spectrum scarcity problem by utilizing their capability of accessing licensed spectrum bands opportunistically. While most exis...
108
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GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract-- In this paper, we propose an evolutionary gametheoretic framework for hybrid additive white Gaussian noise multiple access channels. We consider a communication system c...
117
Voted
GLOBECOM
2008
IEEE
15 years 7 months ago
2008
IEEE
— Multi-user multiple-input multiple-output (MIMO) systems have been emerging and attracting considerable attention recently for its potential to substantially improve system cap...
102
Voted
VTC
2007
IEEE
15 years 6 months ago
2007
IEEE
—This paper presents an opportunistic feedback (OF) protocol that achieves the asymptotic sum-capacity of the fading broadcast channel (BC) with a limited amount of feedback. The...